Rollers for doors of refrigerator and box cars



Oct. 8, 1963 w. A. BEAUCHAMP ROLLERS FOR DOORS OF REFRIGERATOR AND BOX CARS 2 Sheets-Sheet 1 Filed July 22, 1960 E ENE EMF o E FE LBIE o o o 0 0 ,6 g Q m. 2 9 l o 00003. 0 0 o 0 0 o oooo m 0000 3 0 o @0000 00 00 00 3 9 S 0 9 00 8 m o 2 o r 00 0- 0 o 0 o n 00 0o 1. Nu 0 f 3 M o o 0 o 0 0 0 0:0 0 o o 0 j o 0 o o o u o a 07 o I o 0 0 0 t 0 LF)& N((kH/\(\F(\ k\/ w\l 2 9 o. w N "Mb I R 5K1 TTY- Oct. 8, 1963 w, BEAUCHAMP 3,106,000

ROLLERS FOR DOORS 0F REFRIGERATOR AND BOX CARS Filed July 22, 1960 2 Sheets-Sheet 2 .INVENTOR. W/LFBED H. BEHUCHHMP BY fiwae,

3,106,000 RGLLERS FOR DGORS F REFRIGERATOR AND BOX CARS Wilfred A. Beanchamp, Chicago, Ill., assignor to The Youngstown Steel Door Company, Cleveland, Ohio, a

corporation of Ghio Filed July 22, 1960, Ser. No. 44,794 1 Claim. (Cl. 20-23) This invention relates to rollers for doors of refrigerator and box cars.

It is an object of this invention to provide rollers for doors of refrigerator and box cars so constructed as to protect the pins and bearings used with the rollers from corrosion.

A further object is to provide rollers of the character noted above which shall accomplish the indicated purpose without requiring change in the material or structure of the pins or bearings used with the rollers.

A further object is to provide rollers for doors of refrigerator and box cars so constructed as to intercept and discharge brine or other corrosive solutions or matter run ning down the sides of the rollers before such solutions or matter can reach and corrode the pins and bearings used with the rollers.

A further object is to provide rollers of the character noted immediately above which shall be interchangeable with the rollers heretofore used with such cars.

A further object is to provide rollers for doors of refrigerator and box cars of the character set forth immediately above, capable of being produced by screw machines.

Other objects of the invention will become clear as the description thereof proceeds.

In the drawings forming part of this specification:

FIG. 1 is a fragmentary elevation of a side wall of a refrigerator car including the lower portion of a laterally movable door supported upon rollers embodying the instant invention, a part being broken away to show one of the rollers in full lines.

FIG. 2 is an elevation of one of the door supporting roller carriages in which two rollers embodying the instant invention are mounted, a part of the carriage being broken away to show the major portion of one of the rollers in full lines. Portions of a crank arm and a door supporting track are also shown.

FIG. 3 is a vertical section taken on line 3--3 of FIG. 2.

In the drawings the reference numeral designates a side wall of a refrigerator car. Only a portion of the side wall is illustrated. A door opening 11 is formed in the side Wall and is adapted to be closed by a laterally movable door 12, only the lower portion of which is illustrated. The door 12 is supported for lateral movement and for longitudinal movement upon roller carriages 13-. Each of these carriages is provided with a plurality of rollers 14 embodying the instant invention and mounted for rolling movement upon a supporting track 15.

The door 12 may be of any desired construction. To impart lateral movement to it, into and out of the door opening 11, vertical bars 16 are mounted upon the door by means of brackets such as 117 and 18 for rotation about their own axis. Cranks 19 are secured to the lower v mean-a Patented Oct. 8, 1963 ends of the bars 16 and are provided with spindles 20 which are journalled in the carriages 13 between the rollers carried by the carriages. Similar cranks (not shown) are provided on the upper ends of the bars 16. Rotation is imparted to the bars 16 by means of levers 21 and a screw mechanism 22. The levers 21 and screw mechanism 22 and the manner in which they are employed to move the door laterally into and out of the door opening about the upper and lower cranks is fully disclosed in applicants Patent No. 2,658,243, granted November 10, 1953, and incorporated herein by reference. After the door 12 has been moved laterally out of the door opening it can be moved longitudinally along the track 15 upon the roller carriages 13 and rollers 14.

In refrigerator cars using ice and salt to cool the car, a strong brine solution is formed which runs out of the car at the door opening so that a portion thereof falls upon the door supporting track 15. As the rollers 1 i of the roller carriages move along the track they pick up the strong brine solution which runs down the sides of the roller and comes into contact with the bearings and pins used with the rollers. This action is aggravated by the fact that the of the rollers is convex. The result of this action, prior to applicants invention, has been to .As illustrated, the roller bearing 25 embodies a raceway 27 within which are mounted roller bearings 28 maintained in proper spaoedf relationship to each other by means of a spacer 29. It will be apparent, however, that any desired bearing may be utilized with the roller embodying the instant invention.

As noted above, theshoulders 23 and 24 lie outwardly of and in spaced relationship to the bearing 25 and to the pin 26-, thus the shoulders 23 and 24 extend beyond the rim 30 of the roller and between the rim and the bearing 25. The shoulders 23 and 24 are undercut so as to provideintercepting channels as clearly illustrated in FIG. 3 of the drawings. Consequently, any brine solution which may run down the faces of the roller trom the rim will be trapped by the intercepting channels of the shoulders 23 and 24 and dischangedfrom the roller before it can reach and corrode the roller bearing and pin. The bearing and pin are thus adequately protected and the lite of the roller materially increased.

The roller embodying the instant invention is inter changeable with the rollers now used on refrigerator cars. Moreover, the construction of the roller is such that it can as readily be used upon doors for box cars and is interchangeable with the rollers now used on these doors. I

3 I claim: I a In a railway car having a door opening, a door and means for mounting said door for lateral movement and for longitudinal movement upon a track carried by said core; said shoulders having undercut portions constitut-s ing channels which intercept and discharge brine and the like at a distance from said bearing member and said pin;

References Cited in the file of this patent UNITED STATES PATENTS Lawrence Mar. 20, 1877 Ohl July 6, 1909 Beauchamp Nov. 10, 1953 FOREIGN PATENTS France Nov. 8, 1929 Meadow I a W 

